Wall Street's most elaborate, all-night charity scavenger hunt, Midnight Madness, wrapped up in New York City' Museum of Metropolitan Art yesterday. The contest lured 21 teams of 10 employees from banks including Citigroup and Credit Suisse and hedge funds such as PDT Partners, Secor Asset Management and Bridgewater Associates. Pine River Capital Management was the first to reach the finish line after the 16 hour grueling code-cracking challenge. Bloomberg LP, the parent of Bloomberg News, also fielded a team, which placed second. Cantab Capital came in third. The contest raised $3.1M for New York City Good Shepherd Services. (Source: Bloomberg)